Quark model estimate of hidden-charm pentaquark resonances

Emiko Hiyama, Atsushi Hosaka, Makoto Oka, Jean Marc Richard

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the qqqcc configurations, where q is a light quark and c the charmed quark. In the calculation, several open channels are explicitly included such as J/ψ+N, ηc+N, Λc+D, etc. To distinguish genuine resonances and estimate their width, we employ the Gaussian expansion method supplemented by the real scaling method (stabilization). No resonance is found at the energies of the Pc(4380) and Pc(4450) pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a J=1/2- state and another one at 4920 MeV with a J=3/2- state which have a compact structure.

Original languageEnglish
Article number045208
JournalPhysical Review C
Issue number4
Publication statusPublished - 2018 Oct 22
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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